About this data
What it is
Short interest is the number of shares investors have sold short and not yet bought back. FINRA, which oversees US brokers, publishes it for every US-listed stock twice a month.
Who files it
Brokers report their customers' short positions to FINRA, which publishes the totals.
How current
Positions are counted twice a month, and FINRA publishes them about a week later, so the latest report never includes today's short selling.
Worth knowing
A high number can reflect bets that the price will fall, or hedges against other positions. Days to cover is shares short divided by average daily volume: roughly how many days of normal trading it would take to buy them all back.
Not to be confused with
Fails to deliver: shares that were sold but not delivered by the settlement date, from the SEC. The tables on this page have a Fails outstanding column with the balance on each report date.

All of this comes from public filings.

Source: FINRA

Total shares reported short, last 8 reports

050.0K100.0K150.0K200.0KApr 30 · LSTA shares short: 70,246 sharesApr 30May 15 · LSTA shares short: 93,493 sharesMay 15May 29 · LSTA shares short: 124,163 sharesMay 29Jun 15 · LSTA shares short: 89,589 sharesJun 15Jun 30 · LSTA shares short: 104,813 sharesJun 30Jul 15 · LSTA shares short: 129,920 sharesJul 15Jul 31 · LSTA shares short: 56,341 sharesJul 31Aug 14 · LSTA shares short: 89,867 sharesAug 14Aug 31 · LSTA shares short: 141,798 sharesAug 31Sep 15 · LSTA shares short: 164,953 sharesSep 15Sep 30 · LSTA shares short: 39,407 sharesSep 30Oct 15 · LSTA shares short: 28,797 sharesOct 15
050.0K100.0K150.0K200.0KApr 30 · LSTA shares short: 70,246 sharesApr 30May 15 · LSTA shares short: 93,493 sharesMay 15May 29 · LSTA shares short: 124,163 sharesMay 29Jun 15 · LSTA shares short: 89,589 sharesJun 15Jun 30 · LSTA shares short: 104,813 sharesJun 30Jul 15 · LSTA shares short: 129,920 sharesJul 15Jul 31 · LSTA shares short: 56,341 sharesJul 31Aug 14 · LSTA shares short: 89,867 sharesAug 14Aug 31 · LSTA shares short: 141,798 sharesAug 31Sep 15 · LSTA shares short: 164,953 sharesSep 15Sep 30 · LSTA shares short: 39,407 sharesSep 30Oct 15 · LSTA shares short: 28,797 sharesOct 15

Most shorted in the latest report

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Showing: ticker LSTA

Most shorted in the latest report
Shares that brokers had failed to deliver and not yet delivered at the end of this settlement date, from the SEC. The figure is a running balance: all the shares that were still undelivered at the end of that settlement date, including fails carried over from earlier days. It is not the number of new fails that day, and the file does not say how old they are. The same fail is counted again on every day it stays open. The SEC says these numbers are not evidence of abusive or "naked" short selling, and are not necessarily the result of short selling. Fails have many causes, and most are cleared within days. A large balance in one stock is a reason to look closer, not a conclusion.Source
Oct 15, 202628,79739,407-26.9%151,1891.0—FINRA ↗
Sep 30, 202639,407164,953-76.1%362,2561.0none listedFINRA ↗
Sep 15, 2026164,953141,798+16.3%189,4661.0none listedFINRA ↗
Aug 31, 2026141,79889,867+57.8%844,2231.0none listedFINRA ↗
Aug 14, 202689,86756,341+59.5%78,7421.1none listedFINRA ↗
Jul 31, 202656,341129,920-56.6%155,4281.0none listedFINRA ↗
Jul 15, 2026129,920104,813+23.9%46,1672.8none listedFINRA ↗
Jun 30, 2026104,81389,589+17.0%20,0265.2none listedFINRA ↗
Jun 15, 202689,589124,163-27.9%201,1551.0none listedFINRA ↗
May 29, 2026124,16393,493+32.8%220,5921.0none listedFINRA ↗
May 15, 202693,49370,246+33.1%31,2493.0296FINRA ↗
Apr 30, 202670,24651,644+36.0%89,5401.0none listedFINRA ↗
Apr 15, 202651,64416,935+204.9%100,6911.0none listedFINRA ↗
Mar 31, 202616,93514,741+14.9%51,9841.0none listedFINRA ↗
Mar 13, 202614,74115,304-3.7%107,4591.0none listedFINRA ↗
Feb 27, 202615,30430,190-49.3%47,5281.0none listedFINRA ↗
Feb 13, 202630,19027,898+8.2%105,6591.0none listedFINRA ↗
Jan 30, 202627,8987,804+257.5%638,6221.0none listedFINRA ↗
Jan 15, 20267,8049,326-16.3%44,6841.0none listedFINRA ↗
Dec 31, 20259,32615,440-39.6%33,5081.0none listedFINRA ↗
Dec 15, 202515,44017,930-13.9%22,4011.0none listedFINRA ↗
Nov 28, 202517,93021,397-16.2%24,5061.0none listedFINRA ↗
Nov 14, 202521,39719,308+10.8%236,0721.0none listedFINRA ↗
Oct 31, 202519,30819,558-1.3%50,5861.0226FINRA ↗

24 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 5:02 PM EST.

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